Welcome Community 1st and Idaho Independent Banks!
It is our pleasure to welcome Community 1st Bank (CMYF) and Idaho Independent Bank (IIB) to the First Interstate Family.
Former INB Clients
All checks, electronic transfers, and other banking information need to be updated to First Interstate’s routing number by May 31st. The INB routing number will no longer work after this date.
Invest in Your Future with a
Certificate of Deposit
11-Month CD: 2.25% APY*† | 17-Month CD: 2.40% APY*†
*Annual Percentage Yield is accurate as of 1/22/2019. Minimum balance of $1,000 required. This is a special rate offer and no rate bonuses for premium checking accounts apply. No institutional or brokered deposits accepted. Substantial penalty for early withdrawal.
† 11- and 17-month CDs can only be opened in a First Interstate Bank branch. They cannot be opened online.